Cheyenne Walsh received her bachelor’s degree and law degree from University of Arizona.  She also holds a Master of Public Administration degree from Arizona State University.   Prior  to  entering law school,  Ms. Walsh worked as a  

Donald G. Isaacson received his bachelor’s degree from Augustana College, and his law degree from Arizona State University, where he was a member of the editorial board of the Law Journal.  He served as Rules Attorney, Majority Counsel and Director of Research for the Arizona House of Representatives for over six years.  Mr. Isaacson has been in private practice primarily in the area of governmental consulting and lobbying.  During his more than 30 years of lobbying, he has developed expertise in a wide range of policy areas, including banking, insurance, water, public health, law enforcement, public safety, telecommunications, optometry, higher education, budget and finance, taxation, special districts, and professional licensing for various trades.  Throughout his career, he has been active on the legislative committees of the State Bar Association and Chambers of Commerce. He has served as the Chairman of the State Bar's Professional Liability Committee. He is on the Board of Directors of the Arizona Chamber of Commerce and Vice-Chairman of its Water, Energy & Natural Resources Committee. He also chairs  the Phoenix Chamber's Health & Insurance Committee.  

Isaacson & Walsh is a member of The Advocacy Group (TAG), the premier lobbyist, public affairs and government relations network spanning across all 50 states, the U. S. Congress and the globe. TAG’s global network of lobbyists and public affairs professionals provides coordinated and results-oriented solutions for businesses, trade associations and non-profits. Beginning in the U. S. in 1992, TAG expanded its reach to include a number of other countries around the world. TAG helps their clients by developing tailored strategies and solutions and then successfully shepherding them through the often daunting political, legislative and regulatory arenas where public policy becomes law. TAG is the best place to find the very best lobbyists. For more information about The Advocacy Group (TAG), please go to

legislative intern for the Arizona Senate Government & Transportation Committee, and as a legislative associate at the League of Arizona Cities and Towns, where she worked closely with municipalities on issues relating to land use, utilities, development fees, taxes and budgets, and transportation.  She also worked as a legal extern in Washington D.C. on the staff of the U.S. Senate Judiciary Committee.  She was admitted to practice in 2012 and joined the law firm of Squire Patton Boggs (US) LLP where she assisted clients with state and local government relations, Superfund litigation, administrative law and water rights issues.  Ms. Walsh joined the firm in January 2015.

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Marie Isaacson received her Bachelor of Science and Master's in Business Administration from Arizona State University.  Immediately prior to joining Isaacson & Walsh, Ms. Isaacson was the Benefits Director for the State of Arizona, managing the Health Insurance Trust Fund and self-funded medical, pharmacy and dental plans, as well as fully insured dental, vision, life and disability plans.  In her nearly 31-year career with the State of Arizona, she served in many leadership roles at the State, including the State's Human Resources Director and Human Resources Deputy Director.  She has worked on a variety of policy issues and legislation and with the 100+ state agencies, boards and commissions.  Ms. Issacson is a Flinn-Brown Fellow and holds national certifications in human resources.  She joined the firm in July 2018.

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